BRUSSELS, 14 March. /TASS/. The European Union has received an official request from Ukraine regarding a police mission to be sent to Donbass, but it "requires thorough discussions" a source at the EU's external action service told TASS on Saturday.

"The European External Action Service (EEAS) has received a letter from Ukraine’s foreign minister asking to send over to that country’s east of a European mission in the framework of the common foreign policy and the EU security policy," the source said.

The diplomat said the issue "requires thorough discussions."

The EU’s current priority is offering maximum support in personnel, equipment and information for the OSCE monitoring mission with the purpose of establishing stable peace in Ukraine.

A European military source told TASS the biggest problem around "unarmed police mission of the EU" in Donbass is "the lack of clear guarantees for security of the European specialists from all participants in the conflict.".